Lakes in Mayenne, France
Find lakes in Mayenne: county page for 1 named lakes in France. Official surface phosphorus, chlorophyll-a, and Secchi — not a swim-safety class and not a LakeQuality letter.
Lake map
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Named lakes
| Lake | Place | Total phosphorus | Chlorophyll-a | Secchi | Year |
|---|---|---|---|---|---|
| Etang de la Rincerie | Mayenne | 115 µg/L | 25 µg/L | 0.5 m | 2024 |
Frequently asked questions
- How many named lakes are in Mayenne?
- 1 named lakes in Mayenne, France, have official phosphorus, chlorophyll-a, and Secchi, 2024. Values are measurements, not a LakeQuality A–F grade.
- Does LakeQuality grade lakes in Mayenne?
- No. Mayenne pages show official phosphorus, chlorophyll-a, and Secchi from the publishing authority. A letter on the LakeQuality scale would be an invention.